All the new laptops should come with Windows 10 now, I would recommend at least an i5 or i7 with 8GB or 16GB preferred memory and an SSD solid state Drive. Don`t get one with a standard traditional hard drive. Dell or HP laptops provide good support.
based on that spec m8 i would be inclined to wipe and re-load if its got a bit slow, defo boost that memory to at least 8 but 16GB better.
check the bios is up to date also.
what you running Win 7 or 10 ?
on win 7 64bit it says 4gig 3.80gb usableit shouldn`t unless your on Windows 7 32bit?
click start, then right click computer, should tell you there?
ok i,ll check price for memory, thanx for your help m8if on 64bit should be no issues putting in more memory, it helps to load programs better and faster. its just my personal choice but 8gb would be a good upgrade against £500 new laptop?
those numbers are the speed of the memory 1866 being quicker than 1600, but where talking milliseconds lol. best thing is to take back cover off or sometimes its easy access and take a picture of the mem stick. then see on flee bay what's going. ?? yes you can put just 1 x 8gb in as opposed to 2 x 4 or leave in the 4 and just add the 8 also.